666000060 has 192 divisors, whose sum is σ = 2095801344. Its totient is φ = 156672000.

The previous prime is 666000047. The next prime is 666000061. The reversal of 666000060 is 60000666.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (666000061) by changing a digit.

It is a pernicious number, because its binary representation contains a prime number (17) of ones.

It is a polite number, since it can be written in 63 ways as a sum of consecutive naturals, for example, 6465969 + ... + 6466071.

It is an arithmetic number, because the mean of its divisors is an integer number (10915632).

Almost surely, 2^666000060 is an apocalyptic number.

666000060 is a gapful number since it is divisible by the number (60) formed by its first and last digit.

It is an amenable number.

It is a practical number, because each smaller number is the sum of distinct divisors of 666000060, and also a Zumkeller number, because its divisors can be partitioned in two sets with the same sum (1047900672).

666000060 is an abundant number, since it is smaller than the sum of its proper divisors (1429801284).

It is a pseudoperfect number, because it is the sum of a subset of its proper divisors.

666000060 is a wasteful number, since it uses less digits than its factorization.

666000060 is an odious number, because the sum of its binary digits is odd.

The sum of its prime factors is 324 (or 322 counting only the distinct ones).

The product of its (nonzero) digits is 1296, while the sum is 24.

The square root of 666000060 is about 25806.9769636042. The cubic root of 666000060 is about 873.2892003545.

It can be divided in two parts, 6 and 66000060, that added together give a palindrome (66000066).

The spelling of 666000060 in words is "six hundred sixty-six million, sixty", and thus it is an aban number.